Keys, doors and windows 31FaultIf the windows cannot be opened orclosed automatically, activate thewindow electronics as follows:1. Close doors.2. Switch on ignition.3. Close the window completely andoperate the button for a further5 seconds.4. Open the window completely andoperate the button for a further1 second.5. Repeat for each window.Heated rear windowOperated by pressing the Ü button.Heating functions with the enginerunning and is switched offautomatically after a short time.Depending on the engine type, theheated rear window comes onautomatically when the diesel particlefilter is being cleaned.Sun visorsThe sun visors can be folded down orswivelled to the side to preventdazzling.If the sun visors have integral mirrors,the mirror covers should be closedwhen driving.RoofSunroof9 WarningTake care when operating thesunroof. Risk of injury, particularlyto children.Keep a close watch on themovable parts when operatingthem. Ensure that nothingbecomes trapped in them as theymove.Sunroof can be operated with ignitionon.